The cornerstone to accurate estimating is in the calculation of true cost and an accurate production rate. Unit Cost = (Fixed Cost / Output) + Variable Cost
We have found these production rates a good rule of thumb for the construction of Basecourse
Urban environment:
Spread & Compact Production = 30m3/hr
Trimming Production = 250m2/hr
Rural environment:
Spread & Compact Production = 50m3/hr
Trimming Production = 350m2/hr